data: {
itemUrl:[
{
name:'',
url:'../../images/item1.png'
},
{
name: '',
url: '../../images/item2.png'
},
{
name: '',
url: '../../images/item3.png'
},
{
name: '',
url: '../../images/item4.png'
},
{
name: '',
url: '../../images/item5.png'
},
{
name: '',
url: '../../images/item6.png'
},
{
name: '',
url: '../../images/item7.png'
},
{
name: '',
url: '../../images/item8.png'
},
{
name: '',
url: '../../images/item9.png'
}
]
},
onLoad: function () {
var wx = this;
setInterval(function(){
var x = Math.floor(Math.random() * 8 + 1);
var that = 'itemUrl[' + x + '].name';// 先用一个变量，把itemUrl.name用字符串拼接起来
for (var i = 0; i <wx.data.itemUrl.length; i++) {
var all = 'itemUrl[' + i + '].name';
wx.setData({
[all]: '' // 使用【】将字符串包起来，为其赋值
})
}
wx.setData({
[that]: 'active' // 使用【】将字符串包起来，为其赋值
})
},3000)
}
})
